QF-1

Q Multiplier Model QF-1

The Heathkit model QF-1 Q Multiplier when used with a communications receiver, provides additional selectivity or rejection as desired. Because the peak or null effect of the Q Multiplier may be tuned across the receiver's IF bandpass, its operation is more flexible than that of a crystal filter. The Q Multiplier may be used with a receiver that already has a crystal filter to obtain two simultaneous functions. For example, the receiver's crystal filter could be used to peak the desired signal and the Q Multiplier used to null an adjacent signal. As-is no returns. Operating Frequency ...................... 450-460 kc Operation ..... OFF-SHARP PEAK-NULL-BROAD PEAK Tube Complement ................................... 12AX7 multiplier Power Requirements 6.3 volts AC 300 ma, 150-250 volts DC 2 ma

Price: $29.95

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